Hyleoglomeris

Golovatch, Sergei I., Liu, Weixin & Geoffroy, Jean-Jacques, 2012, Review of the millipede genus Hyleoglomeris Verhoeff, 1910 in China, with descriptions of new species (Diplopoda, Glomerida, Glomeridae), Zootaxa 3358, pp. 1-27 : 24-25

Key to Hyleoglomeris species currently known to occur in China

1. Dorsum dark, usually with a vivid colour pattern............................................................. 2

– Body uniformly pallid to light, only slightly pigmented at best.................................................. 7

2. Body rather uniformly orange-brown, dorsum devoid of a colour pattern. Chongqing........................ H. aschnae

– Colour pattern vivid................................................................................... 3

3. Background coloration pallid to yellow, spots on tergites brown to dark brown. Collum, second tergite and tergite 11 entirely pale. Body with a distinctive pattern of 1+1 large, transverse-oval, evidently separated, paramedian spots on tergites 3–10 and on anal shield, as well as of 1+1 increasingly small, roundish, sublateral spots on tergites 3–(8)9. Yunnan....... H. maculata

– Background coloration of dorsum dark, markings lighter...................................................... 4

4. Coloration of dorsum nearly entirely dark brown to blackish, only front third of second tergite contrasting light. Sichuan................................................................................................ H. sinensis

– Coloration of dorsum variegated, with evident spots............................................................

5. Tergites 3–11 with a light yellow axial row of spots flanked by two rows of rather vague, marbled, olive-yellowish spots. Hong Kong....................................................................................... H. bicolor

– Tergites 3–11 with a light axial row of spots flanked by only one row of large, marbled yellowish spots................. 6

6. Caudal half of head and nearly entire collum dark brown to blackish. Telopod syncoxital horns usual, not hypertrophied. Jiangsu................................................................................... H. emarginata

– Head and nearly entire collum light ( Fig. 9 A, B). Telopod syncoxital horns greatly hypertrophied ( Fig. 10 C). Guangxi................................................................................................. H. qiyi sp. n.

7. An evident transverse sulcus above schism on second tergite. Collum with one (front) transverse stria................... 8

– Surface above schism of second tergite smooth. Collum rarely with one, usually with two transverse striae, but 2nd one some- times obliterated mid-dorsally............................................................................ 9

8. Second tergite with 8–11 striae, of which usually seven cross the dorsum. Tips of syncoxital horns with a minute setoid fila-

ment ( Fig. 4 E). Guizhou....................................................................... H. eusulcata – Second tergite with six striae, of which only 3 or 4 cross the dorsum. Tips of syncoxital horns devoid of a setoid filament ( Fig. 16 E). Guangxi........................................................................ H. curtisulcata sp. n.

9. Collum with one (front) transverse stria................................................................... 10

– Collum with two transverse striae, of which 2nd can be obliterated mid-dorsally.................................... 11

10. Central lobe of telopod syncoxite rather low and roundly subtriangular ( Fig. 15 C). Mulun Karst, Guangxi................................................................................................... H. mashanorum sp. n.

– Central lobe of telopod syncoxite rather high and subquadrate ( Fig. 8 C). Guizhou........................ H. yinshi sp. n.

11. Collum with two transverse striae, of which 2nd obliterated mid-dorsally. Mulun Karst.............................. 12

– Collum as usual, with two complete transverse striae........................................................ 13

12. Tip of telopod syncoxite horns devoid of a setoid filament ( Fig. 17 D)................................ H. kunnan sp. n.

– Tip of telopod syncoxite horns with a minute setoid filament ( Fig. 14 D)............................ H. mulunensis sp. n.

13. Brownish pigment usually retained at least in some parts of head.............................................. 14

– Body completely unpigmented (sometimes except for 2 or 3 caudalmost ocelli).................................. 18

14. Head, antennae and collum usually with traces of brownish coloration, sometimes body either uniformly slightly infuscate ( Fig. 9 D–F) or even with a faint pattern of paramedian light brown spots on following tergites........................ 15

– Only head with traces of pigment........................................................................ 16

15. Antennomere 6 ca 2.5 times as long as high. Second tergite with 6 or 7 transverse striae, of which (1)2–3 crossing the dorsum. Yunnan...................................................................................... H. reducta

– Antennomere 6 ca 2.0 times as long as high. Second tergite with 5–7 transverse striae, of which 4 or 5 crossing the dorsum. Guangxi..................................................................................... H. lii sp. n.

16. Head (especially near ocelli and Tömösváry’s organ) and antennae often slightly infuscate, very light brownish. Central lobe of telopod syncoxite broadly subtrapeziform ( Fig. 3 C). Hunan........................................ H. youhao sp. n.

– Only either ocelli or antennae infuscate. Central lobe of telopod syncoxite considerably narrower..................... 17

17. Only ocelli brownish to dark brown. Larger: width 3.8–4.0 mm. Tips of telopod syncoxital horns with a minute lobule devoid of a setoid filament ( Fig. 13 C). Guangxi......................................................... H. xueju sp. n.

– Only antennae sometimes very faintly brownish. Smaller: width 2.5–3.0 mm. Tips of telopod syncoxital horns with a setoid fil- ament ( Fig. 2 E). Hunan........................................................................ H. xia sp. n.

18. Caudomedial process of telopod femur with a distinct distolateral lobe ( Fig. 2 C, lo)................................ 19

– Caudomedial process of telopod femur devoid of a distinct distolateral lobe...................................... 21

19. Tip of telopod syncoxite horn with a minute setoid filament. Yunnan.................................. H. albicorporis

– Tip of telopod syncoxite horn devoid of a setoid filament..................................................... 20

20. Central lobe of telopod syncoxite nearly as high as lateral horns ( Fig. 7 C). Second tergite with six transverse striae, of which three crossing the dorsum. Guizhou............................................................. H. gudu sp. n.

– Central lobe of telopod syncoxite evidently lower, roundly subtriangular ( Fig. 12 C). Second tergite with at least eight trans- verse striae. Guangxi...................................................................... H. heshang sp. n.

21. Telopod tibial process absent ( Fig. 6 C, D). Central lobe of telopod syncoxite rather low and semi-circular ( Fig. 6 C)................................................................................................... H. nigu sp. n.

– Telopod tibial process present. Central lobe of telopod syncoxite higher.......................................... 22

22. Second tergite with 6 or 7 transverse striae, of which only two crossing the dorsum. Central lobe of telopod syncoxite high, subtrapeziform, slightly concave at ventral margin ( Fig. 1 D). Hunan................................... H. tiani sp. n.

– Second tergite with 9 or 10 transverse striae, of which seven crossing the dorsum. Central lobe of telopod syncoxite high, nar- row, linguiform ( Fig. 5 C). Guizhou.............................................................. H. wuse sp. n.

Figures

FIGURE 1. Hyleoglomeris tiani sp. n., male paratype. A: leg 1, front view. B: leg 17, front view C: leg 18, front view. D: left half of telopods, front view. E: tip of syncoxital horn, front view. Scale bar: 0.2 mm (E drawn not to scale).

FIGURE 2. Hyleoglomeris xia sp. n., holotype. A: leg 17, front view. B: leg 18, front view. C: left half of telopods, front view. D: distal part of left half of telopods, caudal view. E: tip of syncoxital horn, front view. Scale bar: 0.2 mm (E drawn not to scale). Abbreviation: lo, lobe on caudomedial femoral process.

FIGURE 3. Hyleoglomeris youhao sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C: left half of telopods, front view. D: distal part of left half of telopods, caudal view. Scale bar: 0.2 mm.

FIGURE 4. Hyleoglomeris eusulcata Golovatch, Geoffroy & Mauriès, 2006, male from Cave Shui Jiang Dong. A: leg 17, front view. B: leg 18, front view. C & D: right half of telopods, front and caudal views, respectively. E: apex of telopod syncoxital horn, front view. Scale bar: 0.2 mm (E drawn not to scale).

FIGURE 5. Hyleoglomeris wuse sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, caudal view. D: apex of telopod syncoxital horn, caudal view. Scale bar: 0.2 mm (D drawn not to scale).

FIGURE 6. Hyleoglomeris nigu sp. n., holotype. A: leg 17, front view. B: leg 18, front view. C & D: left half of telopods, front and caudal views, respectively. Scale bar: 0.2 mm.

FIGURE 7. Hyleoglomeris gudu sp. n., holotype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, front view. Scale bar: 0.2 mm.

FIGURE 8. Hyleoglomeris yinshi sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C & D: right half of telopods, front and caudal views, respectively. Scale bar: 0.2 mm.

FIGURE 9. Habitus of Hyleoglomeris qiyi sp. n., female paratype (A – C), and of Hyleoglomeris lii sp. n., female paratype (D – F), lateral, dorsal and ventral views, respectively. Photographed not to scale.

FIGURE 10. Hyleoglomeris qiyi sp. n., holotype. A: leg 17, front view. B: leg 18, front view. C & D: left half of telopods, front and caudal views, respectively. Scale bar: 0.2 mm.

FIGURE 12. Hyleoglomeris heshang sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C & D: left half of telopods, caudal and front views, respectively. E: tip of syncoxital horn, front view. Scale bar: 0.2 mm (E drawn not to scale).

FIGURE 13. Hyleoglomeris xueju sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, front view. D: caudomedial femoral process, caudal view. Scale bar: 0.2 mm.

FIGURE 14. Hyleoglomeris mulunensis sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, caudal view. D: tip of syncoxital horn, front view. Scale bar: 0.2 mm (D drawn not to scale).

FIGURE 15. Hyleoglomeris mashanorum sp. n., holotype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, front view. D: tip of syncoxital horn, front view. Scale bar: 0.2 mm (D drawn not to scale).

FIGURE 16. Hyleoglomeris curtisulcata sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C: left half of telopods, front view. D: caudomedial femoral process, caudal view E: tip of syncoxital horn, front view. Scale bar: 0.2 mm (E drawn not to scale).

FIGURE 17. Hyleoglomeris kunnan sp. n., holotype. A: leg 17, front view. B: leg 18, front view. C: left half of telopods, front view. D: caudomedial femoral process, caudal view. E: tip of syncoxital horn, front view. Scale bar: 0.2 mm (E drawn not to scale).